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420152236 = 22715005437
BaseRepresentation
bin11001000010110…
…000001110101100
31002021120221111221
4121002300032230
51330024332421
6105405153124
713261143430
oct3102601654
91067527457
10420152236
111a618a659
12b885b7a4
13690790ba
143db2c9c0
1526d44841
hex190b03ac

420152236 has 12 divisors (see below), whose sum is σ = 840304528. Its totient is φ = 180065232.

The previous prime is 420152233. The next prime is 420152237. The reversal of 420152236 is 632251024.

420152236 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 420152236.

It is not an unprimeable number, because it can be changed into a prime (420152233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7502691 + ... + 7502746.

Almost surely, 2420152236 is an apocalyptic number.

It is an amenable number.

420152236 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420152236 is a wasteful number, since it uses less digits than its factorization.

420152236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15005448 (or 15005446 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 420152236 is about 20497.6153735014. The cubic root of 420152236 is about 748.9777100122.

The spelling of 420152236 in words is "four hundred twenty million, one hundred fifty-two thousand, two hundred thirty-six".

Divisors: 1 2 4 7 14 28 15005437 30010874 60021748 105038059 210076118 420152236